五、發明説明（,） 【發明領域】 本發明是有關於-賴波信純發裝置 ㈣模組，特別是指-種㈣料技術產生錢訊號，以 :波訊號中之—預定/指定諧波分別作為傳送之訊號及混 波用之Μ ’俾能以低成本之硬體架構，將傳送訊號調至 頻率較南Μ易受其他訊號干擾且傳輸頻寬較寬的微波信 唬收發裝置之諧波調變/降頻模組。 【習知技藝說明】 第一、二圖分別是專利公報公告編號第314291號『微 10波調頻影像傳送接收裝置』新型專利的發射電路部分方塊 圖及接收電路部分方塊圖。由第一圖可知，發射電路i中 具有一接收影像信號的影像處理電路i丨、一接收聲音信號 的聲音處理電路！2、一連接於該等處理電路n、輸 出端的振盪/調變器13、一連接於振盪/調變器13輸出端的 15功率放大器14，及一連接於功率放大器14輸出端的第一 濾波器15，該等處理電路U、12於輸入至振盪/調變器13 刚相加，直接以振盪/調變器13作調頻調變，產生主頻訊 唬及第二諧波以上之訊號，再以功率放大器丨4予以放大， 最後以第一濾波器1 5將上述的諧波訊號濾除，以主頻訊號 20作為發射傳送訊號。另外，由第二圖可知，接收電路2中 具有一接收天線20、可將接收天線接收的訊號放大的低雜 訊放大器2卜一將假象信號濾除的第二濾波器22、一混波 器23及一振盪器24，藉由該混波器23將第二濾波器22 輸出的接收訊號與振盪器24振盪產生的主頻訊號相混，形 25 成中頻訊號輸出。 頁 第 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 561709V. Description of the invention (,) [Field of the invention] The present invention relates to-Lai Boxin pure hair device ㈣ module, especially refers to-a kind of ㈣ material technology to generate a money signal to: in the wave signal-scheduled / designated harmonic The wave is used as a transmission signal and the mixed signal M ′ can use a low-cost hardware architecture to tune the transmission signal to a microwave signal transmitting and receiving device that has a frequency that is more susceptible to interference by other signals and has a wider transmission bandwidth. Harmonic modulation / frequency reduction module. [Description of Know-how] The first and second figures are the block diagram of the transmitting circuit and the block diagram of the receiving circuit of the new patent of Patent Bulletin No. 314291 "Micro 10-wave FM image transmitting and receiving device". As can be seen from the first figure, the transmitting circuit i has an image processing circuit i 丨 for receiving image signals, and a sound processing circuit for receiving audio signals! 2. An oscillator / modulator 13 connected to the processing circuits n, an output terminal, a 15 power amplifier 14 connected to the output terminal of the oscillator / modulator 13, and a first filter 15 connected to the output terminal of the power amplifier 14. The processing circuits U, 12 are just added to the input to the oscillator / modulator 13 and directly use the oscillator / modulator 13 for frequency modulation to generate a signal with a main frequency and a signal above the second harmonic, and then The power amplifier 4 is amplified, and finally the above-mentioned harmonic signal is filtered by the first filter 15 and the main frequency signal 20 is used as a transmission signal. In addition, as can be seen from the second figure, the receiving circuit 2 has a receiving antenna 20, a low-noise amplifier 2 that can amplify signals received by the receiving antenna, a second filter 22 that filters out artifact signals, and a mixer. 23 and an oscillator 24. The mixer 23 mixes the received signal output from the second filter 22 with the main frequency signal generated by the oscillation of the oscillator 24 to form an intermediate frequency signal output. Page No. This paper size applies to China National Standard (CNS) A4 (210X297 mm) 561709
15 20 25 上面所述發射電路1以振盪/調變器13作調頻調變， 再以第一濾波器15濾掉諧波訊號，以具有較大功率的主頻 訊號傳送，是目前一般發射裝置常用的方式，同樣地，現 在普遍用於接收裝置的調頻技術亦如上面所述，是利用混 波器23將第二濾波器22輸出的接收訊號與振盪器24產生 的主頻訊號相混，形成中頻訊號，然而，上述之作法在成 本的考量上，會使該發射電路1僅限用在將訊號轉變成 2.4+Z\f GHz微波信號，以在2.4 GHz ISM頻帶傳輸，相 對地該接收電路2亦僅用於接收在2.4GHz ISM頻帶傳輸 的微波信號，若要以較高頻之5.8GHz ISM頻帶傳輸，則 發射電路1中的振盪/調變器13以及接收電路2中的振盈 器24,均必須為5.8GHz振盪器，始可振盪產生5 8+Δ f gHz 主頻訊號，但此種5.8GHz振盪器相當昂貴，成本亦相對 提高，無產業上之利用性。 上述一般影音發射電路1、接收電路2因成本之考量， 無法提高傳送訊號的頻率，而藍芽無線傳輸之傳輸訊號及 微波爐等均是以2.4GHz ISM頻帶傳輸，所以影音收發裝 置於傳送的過程極易受到干擾，且2.4GHz ISM傳輸頻帶 所具有的頻寬僅有83·5ΜΗζ，在同一個處所無法同時使用 4個頻道傳輸’更因每一傳輸頻道小，鄰接間隔小，容易 造成相鄰頻道干擾之問題。 因此’如何以低成本硬體架構將影音信號調變成較高頻率 的微波訊號，得以在5.8GHz ISM頻帶傳送信號，避免於 2.4GHz ISM頻帶傳送所產生的傳輸頻寬小、傳送過程訊號 干擾等問題，一直是業界研發的重點之一。 第 頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公爱） (請先閲讀背面之注意事項再填寫本頁) 訂| 561709 A7 I ------—Ξ_____ 五、發明説明（3 ) " —~ 【發明概要】 目此，本發明之-目的，即在提供—種可以較低成本 <硬體架構將影音訊號調變成較高頻率微波訊號傳送，避 錢送過程受其他訊號干擾並增加傳輸品f的微波信號發 5 射裝置之諧波調變模組。 轉明之另一目的，即在提供一種可以較低成本之硬 冑架構將所接收之較高頻率微波訊號轉變成中頻訊號並 消除鄰頻道干擾問題的微波信號接收裝置之諧波降頻模 組。 10 轉明之再-目的，即在提供-種更具產業上之利用 I 性的微波信號收發裝置之諧波調變/降頻模組。 於是，本發明之微波信號發射裝置之諧波調變模組， 包含有一諧波調變子電路、一連接於諧波調變子電路之輸 出端的功率放大器，及-連接於功率放大器之輸出端的^ 15 波器。 微波信號發射裝置所形成之影音調變信號，利用模組 中的諧波調變子電路將影音調變信號調頻調變，而產生一 主頻訊號及其包含有一預定諧波與複數個雜訊諧波之諧波 訊號，再以功率放大器將主頻訊號及諧波訊號放大後，藉 20由僅讓預定諧波之諳波訊號通過的濾波電路，濾除主頻及 預定諧波以外的雜訊諧波，使預定諧波訊號作為發射傳送 之雨頻微波訊號，俾可使用低成本的模組將影音訊號調變 成較一般傳輸頻率高的微波訊號，避免傳送的過程中受其 他訊號之干擾，並可增加傳輸之品質。 25 再者，本發明微波信號接收裝置之諧波降頻模組，將 __ 第6頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐) ~ 一 一15 20 25 The transmitting circuit 1 described above uses the oscillator / modulator 13 for frequency modulation, and then filters the harmonic signals with the first filter 15 and transmits them with the main frequency signal with a higher power. It is a current general transmitting device In a common manner, likewise, the frequency modulation technology commonly used in receiving devices is also described above. The mixer 23 is used to mix the received signal output from the second filter 22 with the main frequency signal generated by the oscillator 24. IF signals are formed. However, in terms of cost considerations, the above method will make the transmitting circuit 1 only used to convert the signals into 2.4 + Z \ f GHz microwave signals for transmission in the 2.4 GHz ISM frequency band. The receiving circuit 2 is also only used to receive microwave signals transmitted in the 2.4GHz ISM band. To transmit in the higher frequency 5.8GHz ISM band, the oscillator / modulator 13 in the transmitting circuit 1 and the oscillator in the receiving circuit 2 The gain device 24 must be a 5.8GHz oscillator, and it can oscillate to generate a 5 8 + Δ f gHz main frequency signal. However, this 5.8GHz oscillator is relatively expensive and the cost is relatively high. It has no industrial applicability. The above-mentioned general audio and video transmitting circuit 1 and receiving circuit 2 cannot increase the frequency of transmission signals due to cost considerations. The transmission signals of Bluetooth wireless transmission and microwave ovens are all transmitted in the 2.4GHz ISM frequency band. Extremely susceptible to interference, and the bandwidth of the 2.4GHz ISM transmission band is only 83.5MΗζ. It is not possible to use 4 channels to transmit at the same time at the same time. Problems with channel interference. Therefore, 'how to use low-cost hardware architecture to tune audio and video signals into higher-frequency microwave signals so that signals can be transmitted in the 5.8GHz ISM band to avoid small transmission bandwidth and signal interference during the transmission process in the 2.4GHz ISM band. Questions have always been one of the focus of R & D in the industry. Page size of this paper applies Chinese National Standard (CNS) A4 specification (210X297 public love) (Please read the notes on the back before filling this page) Order | 561709 A7 I ------— Ξ _____ V. Description of the invention ( 3) " — ~ [Summary of the invention] Therefore, the purpose of the present invention is to provide a method that can lower the cost of the hardware architecture to change the audio and video signal into a higher frequency microwave signal transmission, avoiding the process of sending money. Other signals interfere with and increase the harmonic modulation module of the microwave signal transmitting device of the transmission product f. Another purpose of Tren Ming is to provide a harmonic frequency reduction module of a microwave signal receiving device that can convert a received higher frequency microwave signal into an intermediate frequency signal and eliminate the problem of adjacent channel interference. . 10 The purpose of reinventing the light is to provide a harmonic modulation / down-frequency module of a more industrial-use microwave signal transceiving device. Therefore, the harmonic modulation module of the microwave signal transmitting device of the present invention includes a harmonic modulation sub-circuit, a power amplifier connected to the output end of the harmonic modulation sub-circuit, and-a power amplifier connected to the output end of the power amplifier ^ 15 wave filter. The audio and video modulation signal formed by the microwave signal transmitting device uses the harmonic modulation sub-circuit in the module to modulate the audio and video modulation signal to generate a main frequency signal and it includes a predetermined harmonic and a plurality of noises. Harmonic signals of harmonics, and then amplify the main frequency signal and the harmonic signal with a power amplifier, and then filter out the noise other than the main frequency and the predetermined harmonic by a filter circuit that allows only the predetermined harmonic wave signal to pass. Signal harmonics, so that the predetermined harmonic signals are transmitted as rain frequency microwave signals. You can use low-cost modules to tune the audio and video signals to microwave signals with a higher transmission frequency than normal transmission frequencies to avoid interference from other signals during transmission. And can increase the quality of transmission. 25 Furthermore, the harmonic frequency reduction module of the microwave signal receiving device of the present invention will be __ page 6 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 mm) ~ 1 1
、可— ;^i- (請先閲讀背面之注意事項再填寫本頁) 561709 A7 B7 五、發明説明（ 4 10 15 20 25 微波信號接收裝置所接收上述之較高頻微波訊號轉變成中 頻訊號，設於微波信號接收裝置中的諧波降頻模組包含有 一混波電路、一連接於混波電路之輸出端的濾波器，及一 連接於濾波器之輸出端的增益放大器。 混波電路具有一輸入端接收高頻微波訊號的混波器， 及一連接於混波器另一輸入端的本地振盪器，利用混波器 將高頻微波訊號與本地振盪器產生的一指定諧波混波後， 產生有中頻訊號，再經過僅讓中頻訊號通過的濾波器，濾 除中頻訊號以外的訊號，最後以增益放大器進行高增益之 放大，增強中頻訊號之強度輸出至微波信號接收裝置中的 其他電路，亦可達到以低成本的模組將所接收之較一般傳 輸頻率高的微波訊號，轉變成中頻訊號，同時消除鄰頻道 之干擾問題。 【圓式之簡單說明】 本發明之其他特徵及優點，在以下配合參考圖式之較 佳實施例的詳細說明中，將可清楚的明白，在圖式中： 第一圖是專利公報公告編號第314291號『微波調頻影 像傳送接收裝置』新型專利之發射電路部分方塊圖； / 第二圖是專利公報公告編號第314291號『微波調頻影 像傳送接收裝置』新型專利之接收電路部分方塊圖· 第三圖是本發明微波信號發射裝置之諧波調變棋組幸六 佳實施例的方塊圖，說明本發明設於微波信號發射裝置乂 之動作過程；及 ^"中 第四圖是本發明微波信號接收裝置之諧波降頻模纟▲ 佳實施例的方塊圖，說明本發明設於微波信號接收聿、且車乂 置中 _____第7頁 本紙張尺度適财關家鮮（CNS) A4規格（21〇χ297公釐） (請先閲讀背面之注意事項再填寫本頁)， 可 —; ^ i- (Please read the precautions on the back before filling out this page) 561709 A7 B7 V. Description of the invention (4 10 15 20 25 The above-mentioned higher frequency microwave signal received by the microwave signal receiving device is converted into an intermediate frequency The signal, the harmonic frequency reduction module provided in the microwave signal receiving device includes a mixing circuit, a filter connected to the output end of the mixing circuit, and a gain amplifier connected to the output end of the filter. A mixer that receives high-frequency microwave signals at one input end, and a local oscillator connected to the other input end of the mixer, and uses the mixer to mix the high-frequency microwave signal with a specified harmonic generated by the local oscillator. IF signal is generated, and then only the IF signal is passed to filter out signals other than the IF signal. Finally, the gain is amplified by a gain amplifier to increase the strength of the IF signal and output it to the microwave signal receiving device. In other circuits, it is also possible to use a low-cost module to convert the microwave signal received at a higher frequency than the general transmission frequency into an intermediate frequency signal, while eliminating the [Simplified explanation of the circular form] Other features and advantages of the present invention will be clearly understood in the following detailed description of the preferred embodiment with reference to the drawings. In the drawings: The first picture is a patent Bulletin Announcement No. 314291 "Microwave FM Video Transmission and Receiving Device" New Circuit Patent Circuit Block Diagram; / The second figure is Patent Publication Bulletin No. 314291 "Microwave FM Video Transmission and Receiving Device" Patent Circuit Block Diagram Figure · Figure 3 is a block diagram of the harmonic modulation chess group of the microwave signal transmitting device of the present invention, which is a block diagram illustrating the operation process of the microwave signal transmitting device according to the present invention; It is a block diagram of the harmonic down-conversion mode of the microwave signal receiving device of the present invention. ▲ ▲ A preferred embodiment of the microwave signal receiving device of the present invention. Fresh (CNS) A4 specifications (21 × 297 mm) (Please read the precautions on the back before filling this page)
561709 A7 _B7_ 五、發明説明（ ） w 之動作過程。 【較佳實施例之詳細說明】 (請先閲讀背面之注意事項再填寫本頁) 由第三圖顯示可知，本發明諧波調變模組設置於影音 微波發射裝置中的態樣，該諧波調變模組是設置於一般影 5 音微波發射裝置中一連接於影像處理電路與聲音處理電路 輸出端的相加電路與一功率放大器之間，用以將由相加電 路輸出的影音調變信號轉換成5.8+M GHz微波訊號後輸 出至功率放大器，最後利用發射天線發射出，以在5.8GHz ISM頻帶傳輸；為方便說明起見，以下之實施例說明均以 10 5.8GHz微波訊號代表可在5.8GHz ISM頻帶傳輸的5.8+M GHz微波訊號，並以2.4GHz微波訊號代表可在2.4GHz ISM頻帶傳輸的2.4+M GHz微波訊號，同理2.9GHz微波 訊號代表2.9+Af GHz微波訊號，其中，Af是頻率調變之 偏移量變化。 15 圖中所示一般的影音微波信號發射裝置4，是由影像 處理電路41接收影像信號，進行預強調和放大，並以聲音 處理電路42接收聲音信號，進行預強調和調頻方式調變在 6·0ΜΗζ及6.5MHz的副載波上，再由相加電路4〇在調變 訊號進入諧波調變模組前先將影像處理電路41與聲音處 20 理電路42之輸出相加，而形成影音調變信號輸入本發明之 模組3中，以進行信號之調頻調變。 本發明之谐波調變模組3包含有一可接收上述之影音 調變信號的諧波調變子電路3 1、一連接於諧波調變子電路 31輸出端的功率放大器32,及一連接於功率放大器32之 25 輸出端的帶通濾波器33。 第8頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） %17〇9 A7 —-— B7_ 五、發明説明（< ) ~~ 6 諧波調變子電路具有一 3GHz壓控振盪器（VC0)311， 及與壓控振盈器311連接的鎖相迴路（pll)3 12，以鎖相 迴路312輸出的控制電壓，控制壓控振盪器311的振盪頻 率’使影音調變信號穩定地被調頻成29Ghz主頻訊號， 5並同時伴隨產生與主頻訊號成整數倍的5.8GHZ第二諧波 訊號，與更高頻率的第三諧波訊號…·等諧波訊號，其中第 二諧波是本實施例所欲運用之預定諧波，而其他高次之諧 波訊號則相對成為不需要之雜訊諧波。 將上述所產生之主頻訊號及諧波訊號均輸入該功率放 10大器32，將該等訊號放大並輸出至帶通濾波器33。 帶通濾波器33濾掉由功率放大器32輸出的主頻訊號 及第二諳波以外的雜訊諧波，僅讓5.8GHz第二諧波訊號 通過至該影音發射裝置之功率放大器43，所以本發明不需 利用高成本的5.8GHz高頻振盪器，即可將影音信號調頻 15調變成5.8GHz微波訊號，具有產業上之利用價值。 經上述之過程所產生的5·8 GHz微波訊號，再經由影 音微波信號發射裝置之功率放大器43，及一與該功率放大 器43之輸出端連接的濾、波器44 ,將5 ·8 GHz微波訊號放 大，並濾除雜訊後，最後利用與該濾波器44連接的發射天 20線45 ’將5·8 GHz微波訊號發射傳送出，使訊號傳輸過程 不易受其他訊號干擾，且因為5.8GHz ISM頻帶是在 5725MHz〜5825 MHz之頻率範圍内傳輸，頻寬有 MHz，較2.4GHz頻帶更具有較寬的頻寬，再者，在同一 個處所同時使用4個頻道之傳輸，增加傳輸之品質。 25 再者，參閱第四圖所示，本發明設置於影音微波信號 第9頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁)561709 A7 _B7_ V. Description of the invention () w The process of action. [Detailed description of the preferred embodiment] (Please read the precautions on the back before filling out this page) As shown in the third figure, the harmonic modulation module of the present invention is installed in an audio-visual microwave transmitting device. The wave modulation module is disposed between a video processing circuit and an addition circuit connected to the output of the sound processing circuit and a power amplifier in a general audio and video microwave transmitting device, and is used for converting the audio and video modulation signals output by the addition circuit. After being converted into a 5.8 + M GHz microwave signal, it is output to a power amplifier. Finally, it is transmitted by a transmitting antenna for transmission in the 5.8GHz ISM band. For convenience of explanation, the following embodiments are described with 10 5.8GHz microwave signals. The 5.8 + M GHz microwave signal transmitted in the 5.8GHz ISM band, and the 2.4GHz microwave signal represents the 2.4 + M GHz microwave signal that can be transmitted in the 2.4GHz ISM band. Similarly, the 2.9GHz microwave signal represents the 2.9 + Af GHz microwave signal, of which , Af is the offset change of the frequency modulation. 15 The general audio-visual microwave signal transmitting device 4 shown in the figure is received by the image processing circuit 41 for pre-emphasis and amplification, and the sound processing circuit 42 receives the sound signal for pre-emphasis and frequency modulation. · On the 0MHz and 6.5MHz subcarriers, the addition circuit 40 adds the output of the image processing circuit 41 and the sound processing circuit 42 before the modulation signal enters the harmonic modulation module to form a video. The modulation signal is input into the module 3 of the present invention to perform frequency modulation modulation of the signal. The harmonic modulation module 3 of the present invention includes a harmonic modulation sub-circuit 31 capable of receiving the above-mentioned audio-visual modulation signal 1. A power amplifier 32 connected to the output end of the harmonic modulation sub-circuit 31, and a power amplifier 32 connected to Band-pass filter 33 at the output of power amplifier 32-25. Page 8 This paper size applies Chinese National Standard (CNS) A4 specification (210X297 mm)% 17〇9 A7 —-— B7_ V. Description of the invention (<) ~~ 6 The harmonic modulator circuit has a 3GHz voltage Controlled Oscillator (VC0) 311 and Phase-Locked Loop (Pll) 3 12 connected to Voltage-Controlled Oscillator 311. Control the oscillation frequency of Voltage-Controlled Oscillator 311 with the control voltage output from Phase-Locked Loop 312 to make audio-visual The variable signal is stably frequency-modulated to a 29Ghz main frequency signal, 5 and accompanied by the generation of a second harmonic signal of 5.8GHZ that is an integer multiple of the main frequency signal, and a third harmonic signal of a higher frequency ... and other harmonic signals, The second harmonic is a predetermined harmonic intended to be used in this embodiment, and other high-order harmonic signals are relatively unnecessary noise harmonics. Both the main frequency signal and the harmonic signal generated above are input to the power amplifier 10, and the signals are amplified and output to the band-pass filter 33. The band-pass filter 33 filters out the main frequency signal output by the power amplifier 32 and noise harmonics other than the second chirp wave, and only allows the 5.8 GHz second harmonic signal to pass to the power amplifier 43 of the audio-visual transmitting device. The invention does not need to use the high-cost 5.8GHz high-frequency oscillator, and can tune the audio / video signal frequency modulation 15 into a 5.8GHz microwave signal, which has industrial utilization value. The 5 · 8 GHz microwave signal generated by the above process is passed through the power amplifier 43 of the audio-visual microwave signal transmitting device and a filter 44 connected to the output end of the power amplifier 43 to microwave the 5 · 8 GHz microwave. After the signal is amplified and the noise is filtered out, the transmitting antenna 20 line 45 'connected to the filter 44 is used to transmit the 5 · 8 GHz microwave signal transmission, making the signal transmission process less susceptible to interference by other signals, and because 5.8GHz The ISM band is transmitted in the frequency range of 5725MHz to 5825 MHz. The bandwidth is MHz. It has a wider bandwidth than the 2.4GHz band. In addition, the use of 4 channels in the same location at the same time increases the quality of transmission. . 25 Furthermore, referring to the fourth figure, the present invention is set on the audio-visual microwave signal on page 9. The paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) (Please read the precautions on the back before filling this page )
561709 A7 B7 五、發明説明（7 ) 接收裝置6中的諧波降頻模組5 ’是連接於一般影音微波 信號接收裝置6中帶通濾波器62與可變增益放大器67之 間，以將帶通濾波器62輸出的5.8GHz微波訊號轉變成中 頻訊號輸出至可變增益放大器67。 5 第四圖中顯示，一般影音微波信號接收裝置6中接設 於本發明之諧波降頻模組5的前端是有一可接收5 · 8GHz ISM頻帶的微波訊號之接收天線60、一與接收天線60連 接的低雜訊放大器61，將接收訊號予以放大、一連接於低 雜訊放大器61之輸出端的帶通濾波器62，以將假象信號 1〇 濾除，避免假象信號干擾，本發明之模組5即可接收過濾 後之5.8GHz微波訊號，進行轉換頻率之動作。 影音微波信號接收裝置之諧波降頻模組5包含有一連 接於上述之帶通濾波器62的輸出端之混波電路51、一連 接於混波電路51之輸出端的中頻帶通濾波器52 ,及一連 接於中頻帶通濾波器52之輸出端的增益放大器53。 混波電路51具有一諧波混波器511及一為壓控振盪器 的本地振盪器512，及一鎖相迴路連接於本地振盈器512 之輸出端及鎖相迴路513輸出訊號端連接至本地振盪器 512 ’且该譜波混波器5 11的一輸入端是連接影音微波接收 信號裝置6的帶通濾波器62之輸出端，而另一輸入端是與 本地振盪器512之輸出端連接；藉由鎖相迴路513鎖定於 頻率，使本地振盈器512穩定地振盈產生一頻率範圍界 於2· 6GHz至2.8GHz間的主頻訊號，及與主頻訊號成整數 倍界於5·2Ηζ至5.6GHz間的第二諧波訊號及其以上之諳 波訊號，輸入諳波混波器511，由諳波混波器511先濾掉 15 20 25 _第10頁 本紙張尺度顧巾關家縣(^Γμ規格⑵0X297公釐） (請先閲讀背面之注意事項再填寫本頁) -訂— 561709 A7 _____B7____ 五、發明説明（8 ) (請先閲讀背面之注意事項再填寫本頁) 上述之主頻訊號，並將分別由二輸入端接收的5.8GHz微 波訊號與本地振盪器512所產生的第二諧波訊號相混，而 得一 479·5ΜΗζ中頻訊號輸出。 因該諧波混波器511的輸出不僅有中頻訊號，亦存在 5 有其他訊號，如5.8GHz微波訊號、其他諧波訊號，以及 5.8GHz微波訊號與其他諧波訊號相混而成等訊號，所以諧 波混波器511之輸出端所接的濾波電路52是為一中頻帶通 濾波器，濾除中頻訊號以外的訊號，僅讓中頻訊號通過， 至該增益放大器53。 10 增益放大器53使中頻訊號經該放大器53放大後，形 成高增益放大之中頻訊號輸出至影音接收裝置6的其他電 路，在此所述之其他電路是一般影音接收裝置6的可變增 益放大器67及其輸出端連接至表面聲波濾波器（SAW Filter) 63之輸入端、一連接於表面聲波濾波器63之輸出 15端的放大器64、一連接於放大器64之輸出端的解調器65, 及一連接於解調器65與可變增益放大器67間的自動增益 控制66，由於上述之其他電路均是設於一般影音接收裝置 中的電路，將中頻訊號經濾波、放大及解調成基頻訊號， 其過程不再詳細說明。 2〇 藉由5.8GhzISM寬頻帶的傳輸，使相鄰頻道間的鄰接 間隔較大，使得於位於接收端之微波信號接收裝置，利用 帶通濾波器即可非常容易地將其他頻道之信號濾除，消除 鄰頻道干擾之問題。 歸納上述，本發明微波信號收發裝置之諳波調變模組 25及諧波降頻模組藉由將主頻訊號及不需要的雜訊諧波濾除 ____第11頁_ 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公爱） ^01709 A7 """""' ' ----------- B7 _______ 五、發明説明（9 ) 之技術手段，並配合將第二諧波放大，增加第二諧波之功 率，彳于以第二諧波作為傳輸之訊號波，即可以低成本之硬 體架構，將影音訊號調變成較高頻率微波訊號傳送，避免 傳送過程受其他訊號干擾並增加傳輸品質，並可接收較高 5頻率之微波訊號轉變成中頻訊號，並消除鄰頻道干擾問 題，確實達到本發明之目的。 另外，本發明除了以上面所述之較佳實施例的方式進 行具體實施之外，亦可視使用上之需要，以其他諧波作為 諧波調變模組的預定諧波以及諧波降頻模組的指定諧波。 10例如，在諧波調變模組中以不同於3GHz之其他振盪頻率 的振盪器，將影音調變信號調頻成其他頻率之主頻訊號及 其第二諧波、第三諧波…·等譜波訊號，經放大後，再以帶 通濾波器將主頻及不需要孓諧波訊號（即視為雜訊諧波）濾 除’僅讓頻率是為5.8GHz的第N諧波之諧波訊號通過， 15 亦可同樣地將影音信號調變成5.8GHz微波訊號。再者， 在微波信號發射裝置中的諧波降頻模組，則可令其他振盈 頻率的本地振盪器，振盪產生主頻訊號及其第二諧波、第 三諧波…·等諧波訊號，以諧波混波器濾掉主頻訊號，並使 諧波混波器將接收的5.8GHz微波訊號與本地振盪器所產 2〇 生的頻率界於5·2Ηζ至5.6GHz間的第N諧波訊號相混， 得一 479·5ΜΗζ中頻訊號輸出。 再者，亦可利用本發明之技術手段運用於其他頻帶之 信號收發，在微波信號發射裝置中的諧波調變模組，以其 振盪諧波訊號中具有傳送所需頻率之預定諧波的振盪器， 25 再以一濾波器將該振盪器之所振盪產生的主頻訊號及預定 第12頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁)561709 A7 B7 V. Description of the invention (7) The harmonic frequency reduction module 5 'in the receiving device 6 is connected between the band-pass filter 62 and the variable gain amplifier 67 in the general audio-visual microwave signal receiving device 6, so as to The 5.8 GHz microwave signal output from the band-pass filter 62 is converted into an intermediate frequency signal and output to a variable gain amplifier 67. 5 The fourth figure shows that the front end of the general audio frequency microwave signal receiving device 6 connected to the harmonic down-conversion module 5 of the present invention is a receiving antenna 60 that can receive microwave signals in the 5.8 GHz ISM frequency band. The low-noise amplifier 61 connected to the antenna 60 amplifies the received signal and a band-pass filter 62 connected to the output end of the low-noise amplifier 61 to filter out the artifact signal 10 and avoid the interference of the artifact signal. Module 5 can receive the filtered 5.8GHz microwave signal and perform the frequency conversion operation. The harmonic frequency reduction module 5 of the audio-visual microwave signal receiving device includes a mixing circuit 51 connected to the output end of the above-mentioned band-pass filter 62, and an intermediate-frequency band-pass filter 52 connected to the output end of the mixing-wave circuit 51. And a gain amplifier 53 connected to the output of the intermediate-band pass filter 52. The wave mixing circuit 51 has a harmonic wave mixer 511 and a local oscillator 512 which is a voltage controlled oscillator, and a phase locked loop connected to the output terminal of the local oscillator 512 and the output signal terminal of the phase locked loop 513 to The local oscillator 512 ′ and one input terminal of the spectral wave mixer 5 11 is an output terminal of the band-pass filter 62 connected to the audio-visual microwave receiving signal device 6, and the other input terminal is the output terminal of the local oscillator 512 Connection; by phase-locked loop 513 locked to the frequency, the local oscillator 512 can stably vibrate to generate a main frequency signal with a frequency range between 2.6GHz and 2.8GHz, and an integer multiple of the main frequency signal. The second harmonic signal between 5 · 2Ηζ and 5.6GHz and the above wave signal are input to the wave mixer 511, and the wave mixer 511 first filters out 15 20 25 _page 10 Jinjia County (^ Γμ size⑵0X297mm) (Please read the precautions on the back before filling this page)-Order — 561709 A7 _____B7____ V. Description of the invention (8) (Please read the precautions on the back before filling this page ) The above-mentioned main frequency signal will be received by the two input terminals respectively 5. The 8GHz microwave signal is mixed with the second harmonic signal generated by the local oscillator 512, and a 479 · 5MΗζ intermediate frequency signal is output. Because the output of this harmonic mixer 511 includes not only IF signals, but also other signals, such as 5.8GHz microwave signals, other harmonic signals, and 5.8GHz microwave signals mixed with other harmonic signals. Therefore, the filter circuit 52 connected to the output end of the harmonic mixer 511 is an intermediate-frequency band-pass filter, which filters signals other than the intermediate-frequency signal and allows only the intermediate-frequency signal to pass through to the gain amplifier 53. 10 The gain amplifier 53 enables the IF signal to be amplified by the amplifier 53 to form a high-gain amplified IF signal to be output to other circuits of the audio-visual receiving device 6. The other circuits described herein are variable gains of the ordinary audio-visual receiving device 6. The amplifier 67 and its output are connected to the input of a surface acoustic wave filter (SAW Filter) 63, an amplifier 64 connected to the output 15 of the surface acoustic wave filter 63, a demodulator 65 connected to the output of the amplifier 64, and An automatic gain control 66 connected between the demodulator 65 and the variable gain amplifier 67. Since the other circuits mentioned above are circuits provided in a general audio and video receiving device, the intermediate frequency signal is filtered, amplified, and demodulated into a base Frequency signal, the process is not explained in detail. 2．By the 5.8GhzISM wideband transmission, the adjacent space between adjacent channels is large, so that the microwave signal receiving device at the receiving end can use the band-pass filter to easily filter signals from other channels. To eliminate the problem of adjacent channel interference. Summarizing the above, the chirp modulation module 25 and the harmonic frequency reduction module of the microwave signal transmitting and receiving device of the present invention filter out the main frequency signal and unwanted noise harmonics ____ page 11 _ paper size Applicable to China National Standard (CNS) A4 specification (210X297 public love) ^ 01709 A7 " " " " " '' ----------- B7 _______ V. Description of Invention (9) Technical means, combined with the amplification of the second harmonic to increase the power of the second harmonic, and using the second harmonic as the signal wave for transmission, the low-cost hardware architecture can be used to tune the audio and video signal to a higher frequency Microwave signal transmission, avoiding the transmission process being interfered by other signals and increasing the transmission quality, and can receive microwave signals of higher frequency 5 to be converted into intermediate frequency signals, and eliminate the problem of adjacent channel interference, which indeed achieves the purpose of the present invention. In addition, in addition to the specific implementation of the present invention in the manner of the preferred embodiment described above, other harmonics may be used as the predetermined harmonics of the harmonic modulation module and the harmonic frequency reduction mode according to the needs of use. Specified harmonics of a group. 10 For example, in a harmonic modulation module, an audio frequency modulation signal other than the main frequency of 3GHz is used to modulate the audio frequency modulation signal into a main frequency signal of another frequency and its second harmonic, third harmonic ... The spectral wave signal is amplified, and then the main frequency and the unnecessary harmonic signals (ie, regarded as noise harmonics) are filtered by a band-pass filter. 'Only let the frequency be the harmonic of the Nth harmonic of 5.8GHz. If the wave signal passes, 15 can also convert the audio and video signal into a 5.8GHz microwave signal. In addition, the harmonic frequency reduction module in the microwave signal transmitting device can cause the local oscillators of other vibrating frequencies to oscillate to generate the main frequency signal and its second harmonic, third harmonic ... and other harmonics. Harmonic mixer to filter out the main frequency signal, and make the harmonic mixer to receive the 5.8GHz microwave signal and the local oscillator produced by the local oscillator frequency range between 5 · 2Ηζ to 5.6GHz N harmonic signals are mixed to obtain a 47.5MΗζ intermediate frequency signal output. Furthermore, the technical means of the present invention can also be used to transmit and receive signals in other frequency bands. The harmonic modulation module in the microwave signal transmitting device uses the oscillation harmonic signal with a predetermined Oscillator, 25 and then a filter to generate the main frequency signal generated by the oscillation of this oscillator and the predetermined page 12 This paper size applies Chinese National Standard (CNS) A4 specifications (210X297 mm) (Fill in this page again)
561709561709
:波以外的諧波職除’中間配合功率放大器之放大， :可將影音信號調頻成所需的頻率傳送；於微波信號接收 表置的較調變模組中，則以可振“具有指定諸波的本 地振盪益，振盪產生主頻訊號及其第二諧波、第三諧… 等諧波訊號，以諧波混波器濾掉主頻訊號，並使諧波混波 器將接收的發射裝置傳送出的微波訊號與本地振盪器所產 生第N #波之}曰疋谐波訊號相混，最後得一 479.5MHz中 頻訊號輸出。 ίο (請先閲讀背面之注意事項再填寫本頁) 惟以上所述者，僅為本發明之較佳實施例而已，當不 能以此限定本發明實施之範圍，即大凡依本發明申請專利 範圍及發明說明書内容所作之簡單的等效變化與修飾，皆 應仍屬本發明專利涵蓋之範圍内。 第13頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公爱） 561709 A7 B7 五、發明説明（u ) 【元件標號對照】 3 影 音 微 波發 射 裝 置 之諧 波調 變 模 組 3 1 諧 波 調 變 子 電 路 3 11 壓 控 振 盪 器 312 鎖 相 迴 路 32 功 率 放 大 器 33 帶 通 濾 波 器 4 影音 微 波 發 射 裝 置 41 影 像 處 理 電 路 42 聲 音 處 理 電路 43 功 率 放 大 器 44 滤 波 器 5 影 音 微 波接 收 裝 置 之諧 波降 頻 模 組 51 混 波 電 路 511 諧 波 混 波 器 512 本 地 振 盈 器 513 鎖 相 迴 路 52 中 頻 帶 通 渡 波 器 53 增益放大器 6 影 音 微 波 接 收 裝 置 61 低 雜 訊 放 大 器 62 帶通濾波器 63 表 面 彈 性 波 滤 波 器 64 放 大 器 65 解 調 器 66 動 增 益 控 制 67 可 變 增 益 放 大 器 (請先閲讀背面之注意事項再填寫本頁) 第14頁 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐）: Harmonics other than waves, in addition to the amplification of the power amplifier,: It can tune the audio and video signals to the required frequency for transmission; in the more modulating module set in the microwave signal receiving table, The local oscillation of the waves is beneficial. The oscillation generates the main frequency signal and its second harmonic, third harmonic, and other harmonic signals. The harmonic mixer filters out the main frequency signal and causes the harmonic mixer to receive the The microwave signal transmitted by the transmitting device is mixed with the N # wave of the local harmonic signal generated by the local oscillator, and finally a 479.5MHz IF signal is output. Ίο (Please read the precautions on the back before filling this page ) However, the above are only preferred embodiments of the present invention. When the scope of implementation of the present invention cannot be limited by this, that is, simple equivalent changes and modifications made in accordance with the scope of the patent application and the content of the invention specification , All should still fall within the scope of the invention patent. Page 13 This paper size applies the Chinese National Standard (CNS) A4 specification (210X297 public love) 561709 A7 B7 V. Description of the invention (u) [Element number comparison] 3 Shadows Harmonic modulation module of audio microwave transmitting device 3 1 Harmonic modulation sub-circuit 3 11 Voltage-controlled oscillator 312 Phase-locked loop 32 Power amplifier 33 Band-pass filter 4 Audio-visual microwave transmitting device 41 Image processing circuit 42 Sound processing circuit 43 Power amplifier 44 Filter 5 Harmonic frequency reduction module of audio-visual microwave receiving device 51 Mixing circuit 511 Harmonic mixer 512 Local oscillator 513 Phase-locked loop 52 Mid-band pass-through wave 53 Gain amplifier 6 Audio-visual microwave reception Device 61 Low-noise amplifier 62 Band-pass filter 63 Surface acoustic wave filter 64 Amplifier 65 Demodulator 66 Dynamic gain control 67 Variable gain amplifier (Please read the precautions on the back before filling this page) Page 14 This paper Applicable to China National Standard (CNS) A4 (210X297 mm)